Nicky’s boyfriend David Katzenberg drove the pair to the downtown Los Angeles jail unit that treats inmates for physical and mental ailments. They entered through a crush of photographers, filled out visitation forms, and were whisked upstairs.

Other visitors grumbled that they jumped the line.

“We don’t care about no Paris Hilton,” said one upset mother. “We’re here for our families.”

Said another relative, “Why did they get to go up first, that’s what I want to know?”

Nicky Hilton and Niarchos were the first family or friends admitted as visitors since Hilton was sent to the locked-down ward Friday after a brief reassignment to home confinement because of an unidentified medical condition. Hilton was visited Saturday by her psychiatrist.

Hilton, 26, originally surrendered June 3 to a women’s jail in Lynwood, Calif. She says she will not fight her sentence and serve out the remainder of her minimum 23-day term for violating probation in alcohol-related driving case for driving with a suspended license. With time off for good behavior, she could leave in just over two weeks.